Which form of carbon was discovered in 1985 through work by a team including Robert F. Curl, Harold W. Kroto and Richard E. Smalley?

Explanation

Fullerenes are carbon structures based on closed cages, including C₆₀, buckminsterfullerene. Work by a team including Curl, Kroto and Smalley established this new carbon form in 1985. The three shared the 1996 Nobel Prize in Chemistry for the discovery. Graphene and lonsdaleite are different carbon structures.